[Stoves] Aprovecho Research Center Newsletter

Fri Mar 25 19:40:26 CDT 2011

Dear Sam and Dean and all,

Great newsletter.

Item #2 was especially interesting about comparison of TLUD and open  
fire when the room become an open area under a canopy.   Readers  
should go to the Powerpoint for more info.

One question stemming from Slide 15 about Conclusions and discussion.   
Your slide says:

Improvement of TLUD over open fire
•
What was significant?
•
What was not?
•
Why is that important?

But it is only the questions, not the responses.  Could you please  
post the answers you have to your questions?

Another question.  You provide values for CO and PM in units such as

ug/m3   and    ppm    taken from ambient emissions testing equipment  
(different from the PEMS equipment)
       (example below is from slide 12 only with data from Outside tests)

A=Stove   B=Measurement  C=Units   D=Estimated mean  E=Estimated error on mean

           A                     B                  C      D         E
3-Stone-Fire Outside   Average PM concentration   ug/m3 261.58   6.80E-08

       TLUD   Outside   Average PM concentration   ug/m3 170.49   267.13

3-Stone-Fire Outside   Average CO concentration    ppm 2.57     4.27E-10

       TLUD   Outside   Average CO concentration    ppm 1.49     2.77

and we see high and low values.  But I do not remember what are the  
threshhold values or benchmarks or whatever measures to be used to say  
that a numeric result is bad or meduim or good or whatever.  Please  
direct me to such an explanation or please give your best  
interpretation of those results.

Thanks,

Paul
-- 
Paul S. Anderson, PhD
Known to some as:  Dr. TLUD    Doc    Professor
Phone (USA): 309-452-7072   SKYPE: paultlud   Email: psanders at ilstu.edu
www.gtz.de/de/dokumente/giz2011-en-micro-gasification.pdf   (Best ref.)

Quoting Aprovecho Research Center Lab <root at web04.secureserverdot.com>:

> This email contains graphics, so if you don't see them, view it in  
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> ).
>
> March 25, 2011 • www.aprovecho.org/lab • 541-767-0287
>
> News from the Institutional Stove Project
>
> Our 60-liter institutional stove is headed for Darfur! The first 60  
> of 200 stoves, designed specifically for cooking large amounts of  
> food for
> schools, hospitals, refugee camps and other institutional settings,  
> were shipped to the World Food Programme in Darfur on March 17.  
> Institutional
> Stove Project Director Fred Colgan will travel to Darfur this summer  
> to conduct the follow-up prior to building an institutional stove  
> factory in the
> country.
> In a pilot study in Nigeria, three 60-L stoves were sufficient to  
> feed 1,200 students. The 60-L stove was rated the most cost  
> effective large-scale
> stove in a recent USAID study in Haiti and performs a dual purpose  
> in sterilizing medical equipment when fitted with an autoclave. It  
> has also been
> found to have hybrid capabilities, burning biomass briquettes in  
> addition to wood.
> Here at the lab, we’re excited about the possibility of fostering  
> independent stove factories across the world – an effort that could  
> build local
> economies while producing clean-burning institutional stoves. We’ve  
> now completed two pilot projects in Africa, and are involved in  
> discussions
> regarding six more in Africa and the South Pacific. On the  
> fundraising front, discussions are now in process with community  
> leaders and foundations as
> we begin to plan a comprehensive campaign. More on this will be  
> coming your way in the months ahead. Check out our improved website (
> http://www.aprovecho.org/lab/institutional-stove-project/institutional-project ) and stay  
> tuned!
> Check out the latest USAID report from Haiti (  
> http://www.aprovecho.org/lab/index.php?option=com_rubberdoc&view=doc&id=185&format=raw ) –  
> the
> StoveTec stove saved 50% fuel, meeting the aspirational goal  
> envisioned by the Department of Energy.
>
> Cooking Under a Veranda Protects Health
>
> The open fire and a cleaner burning Top Lit Up Draft (TLUD) stove  
> were tested both in the Aprovecho Test Kitchen and in a three-walled  
> covered veranda
> under calm conditions. Results showed that cooking under the veranda  
> dramatically reduced both particulate matter (PM) and carbon  
> monoxide (CO)
> exposure to the cook. Increasing air exchanges reduced levels of PM  
> and CO 90% more than switching to a cleaner stove.
>
> In the Test Kitchen with windows and door closed, the open fire  
> average level of particulate matter was 11,665ug/m3 and the average  
> for carbon
> monoxide was 262ppm. Under the veranda, the average open fire PM was  
> 262ug/m3 and the average CO was 2.6ppm. The TLUD in the Test Kitchen  
> had an
> average PM of 1849ug/m3 and the average CO was 170ppm. Under the  
> veranda the TLUD showed an average of 18ug/c3 and the average CO was  
> 1.5ppm. See the
> Indoor Air Pollution Comparison (  
> http://www.aprovecho.org/lab/index.php?option=com_rubberdoc&view=doc&id=186&format=raw ) presentation for  
> further
> details.
>
> Partnership for Clean Indoor Air Newsflash
>
> Executive director Dean Still and lab manager Sam Bentson recently  
> returned from the Partnership for Clean Indoor Air Forum in Peru.  
> Read more (
> http://aprovecho.org/lab/index.php?option=com_content&view=article&id=71:lima-report&catid=43 ) on the lessons they took away from the  
> conference!
>
> The Lima Consensus and Regional Testing Center Association
>
> At the recent PCIA Forum in Lima, Peru, many researchers, stove  
> labs, and Regional Testing Centers reached a consensus resulting in  
> a proposed
> protocol for benchmarking cooking stoves. The document features  
> levels of achievement for fuel use and emissions of CO and PM. Both  
> the testing
> protocols, based on the WBT 4.0, and emission testing equipment are  
> described. Read the Lima Consensus proposal (
> http://www.aprovecho.org/lab/index.php?option=com_rubberdoc&view=doc&id=187&format=raw  
> )!
>
> The new Regional Testing Center Association (RTCA) was also formally  
> inaugurated in Lima during the Forum. Thank you, PCIA! The RTCA will  
> experiment
> with the Lima Consensus approach and plans to report back after  
> using the benchmarking system. Regional Testing Centers are located  
> around the world
> in the following countries: Bolivia (GIZ), Cambodia (GERES),  
> Honduras (Zamarano University), India (Prakti Labs), Peru (SENCICO),  
> Uganda (Makerere
> University), and the United States (Aprovecho Research Center).  
> Contact Dean Still for more RTCA information at: deankstill at gmail.com
>
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>
>

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